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Line 48: This message identifies a patch, by a single byte. Juno 60 ignores this. It is sent once after a patch change, with the first key code by OP-8 and JP-8. It does not have an end mark. === FE: Key Code === This message identifies a key event. It contains one byte for each note channel the transmitter supports - so it is 8 bytes long for JP-8 and OP-8, or 6 bytes for Juno 60. ~~Each byte defines what happens to one of the channels (Juno 60 has 6 channels, hence 6 bytes).~~ Each channel byte defines a key number (bits 0-6) and whether the key is gated on (1) or off (bit 7). Keys are identified with 0-96 with zero meaning C0 (16.4Hz), up to 96 C8 (4205Hz).

Digital Control Bus: Difference between revisions